The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 1991
Filed:
Aug. 01, 1990
Applicant:
Inventor:
Peter A Collingborn, Kent, GB;
Assignee:
Lucas Industries Public Limited Company, Birminghan, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417279 ; 417440 ; 417462 ; 123447 ; 123506 ;
Abstract
A fuel pumping apparatus of the rotary distributor type includes a spill passage 20 connected with the bore 12 which houses the pumping plungers 9. A seating 22 is defined about the spill passage and a valve member 23 is provided for cooperating with the seating. A piston 25 is coupled to the valve member and is slidable in a cylinder. The piston defines a surface against which fuel under pressure from the bore 12 can act to lift the valve member from the seating. The application of fuel under pressure to the surface of the piston is controlled by an electro-magnetically operable control valve 32A.